Makita DCS230T Technical Information page 3

3. Disassembly/Assembly
CAUTION: Be sure to remove gasoline and saw chain from the machine for safety before repair/ maintenance!
Refer to the instruction manual for detailed information on how to remove or adjust saw chain.
IMPORTANT: When replacing Oil pump, also replace chain oil by fresh one.
3-1. Clutch Section
DISASSEMBLY
1) Clutch can be easily removed using Impact driver without locking Spindle.
2) Do not remove Spark plug because Clutch is removed using compression resistance.
CAUTION: Be sure to turn off Engine stop switch to avoid injury from accidental engine startup.
3) Attach 13mm hex socket bit to Impact driver. Clutch is left-handed. Therefore, remove Clutch by turning the hexagonal
portion in the center of Clutch clockwise with the Impact driver. (Fig. 1)
ASSEMBLY
1) Apply Makita grease N No. 2 to the Needle bearing on
Clutch drum, and insert Clutch drum in Crankshaft.
2) Set Flat washer 8 in place so that the chamfered side of
the washer faces the engine side. (Fig. 2)
3) Assemble Clutch to Crankshaft first by turning it
counterclockwise by hand, then turning counterclockwise
for one second with Impact driver. (Fig. 1)
3-2. Inspection of Clutch Drum
1) If the sprockets are dirty or worn down, clean them or
replace Clutch drum by new one. (Fig. 3)
2) At the same time, check the drive links of saw chain
for damage or wear. And if necessary, replace them
by new ones. (Fig. 4)
3-3. Oil Pump Section
DISASSEMBLY
1) Remove Worm gear by turning counterclockwise with thin screwdriver. (Fig. 5)
2) Unscrew 4x18 Tapping screw, and remove Oil pump cover and Chain slider (L).
3) Remove two M4x12 Pan head screws. While levering up Connector a little bit,
pull off Connector and Oil tube from Oil pump. Now Oil pump can removed. (Fig. 6)
Note: Be sure to replace Oil pump entirely by new one.
4) Check if Connector and Oil tube is cracked or clogged and if Spring (oil filter) is clogged. (Fig. 6)
Fig. 5
Fig. 1
Fig. 3
Fig. 6
Oil pump
Worm gear
Fig. 2
Flat washer 8
loosen
tighten
Fig. 4
Oil tube
3 / 20
Connector
Spring